Heater.



-V-PATBNTBD MAY so, 1905.l

w. H. JONES.

HEATER 'APPLIGATION `FILED JULY 8.19.04.

2 SHEETS-SHEET 1.

N s l ll'ness GQ.'

No. 791,344. v PATENTBD MAY 30, 1905.

W. H. JONES. 1

HEATER.

' APPLICATION FILED JULYB. 1904.

-2 SHEETS-SHEET 2.

y No. 791,344.

rammed May so, 1905.

'UNITED STATES PATENT OFFICE.

WILLIAM II. JONES, OF PULLMAN, ILLINOIS, ASSIGNOR OF TWO-THIRDS c TO EGBERT H. GOLD, OF CHICAGO, ILLINOIS.

HEATER.

SPECIFICATION forming part of Letters Patent No. 791,344, dated May 30, 1905,

Application filed July 8, 1904. Serial No. 215,787.

provements in Heaters,`of which the following is a specification.

My invention relates to improvements inl hot-water heaters adaptable for various purposes, but especially adapted and intended for use in car-heating systems in which a body:

of heated water is caused to circulate through al closed circulating system comprising twol heaters in operative contact therewith, said heaters consisting of a primary heater, in which the heat is supplied by live steam from the locomotive or elsewhere, anda secondary 1. or emergencyheater, in which heat is supplied by a direct lire in the iirst box.

The object of my invention is to provide a simple, durable, and comparatively inexpensive heater which shall be efficient and powerful and which may be maintained at a mini- These and such other objects as may hereinafter appear areg attained by my invention, which is embodied in one convenient form thereof in the struc-v ture shown in the drawings, in which- Figure l is an elevation of a heater embodying my improvement. Fig. 2 is a vertical sectional view thereof. Fig. 3 is a horizontal section thereof on the line 3 3 of FigrQ. Fig. A is a horizontal section thereof `on the linet 4 of Fig. 2. Fig. 5 is a vertical section thereof on the line 5 5 of Fig. 3.

Like letters of reference indicate the same parts in the several figures of the drawings'.

My improved heater consists, primarily, of a triple-walled'shell composed of the walls or partitions A, B, and C and A', B', and C. For reasons which will be hereinafter eX- plained two of these walls or partitions, preferably B C and B' and C', are horizontally corrugatedz y The projecting iianges of the partitions B C are secured together to make a tight joint in any suitable manner; but the best results will be attained by lap-welding. these anges together. In like manne'rvthe partitions A', B', and C' aresecured together. The projecting flanges of the partitions A,

B, and C are united to the laterally-projecting anges of the partitions A', B', and C', which is clearly shown in Figs. 3 and 4:, so as to completethe casing of my'heater, the partitions C and C' forming the verticalY walls ofthe combustion-chamber D of the heater. It will thus be seen that the vertical walls of my heater in the embodiment thereof shown in the drawings comprises four disconnectedV chambers E F and E' F', respectively, and preferably the flanges of the partitions forming these chambers are so welded together that each half of the vertical walls of the heater is integral and complete in itself. i

One half of the heater is intended for use i in the system of heating one side of a car and the other disconnected half for heating the lother side of the car. x

The chambers F and F' constitute the water.- chambers. l Water is admitted to the chamber F through a cold-water-inlet pipe G. As the water is heated it rises in the chamber F and escapes through the outlet-pipe H, through the circulating system of the apartment tov be heated, commonly a car, in which event the pipe H will usually lead to the ordinary elevated extension-tank common to car-heating systems employing hot water as a heating medium.

A steam-inlet pipe I leads into the chamber E, and an outlet-pipe J leads from the chamber E for the discharge of cold air, Water of condensation, Sac., the outlet from said pipe being controlled in any suitable manner, as by an automatic trap, a stop-cock, or the like.

Fuel may be fed to the interior of the heater ash-pit.

To heat water by means of steam, steam will be admitted through the pipe I into the compartment E, which constitutes a steam-jacket, and will be radiated through the partition B,

and heat will be radiated from the steamjacket E into the water in the compartment F, which constitutes a water-jacket, theheated water flowing out through the pipe H and cold Water entering through the pipe G.

Inasmuch as the partition B will be eX- posed to the cooling influence of the water within the water-jacket F, while the partition A will be exposed to atmospheric temperature, the admission of steam into the steam-jacket E will cause an unequal expansion of the partitions A and B. To compensate for this, the partition B is corrugated, and inasmuch as all three partitions are secured together the partition C is likewise corrugated horizontally, so that there may be an unequal expansion as between the partitions A, B, and C without any resulting damage to the apparatus. rlhe necessity for this is also apparent when tire is built within the fire-box D and the partition C is exposed directly to the intense heat of the fire -box, While the partition B is cooled by the water Within the water-jacket, and the partition A is still further cooled by the atmosphere.

Of course whenever desired both steam and fire can be applied, in which event the water in the water-jacket F will be exposed on one side to the intense heat of the fire in the iirebox D, which will be radiated through the comparatively thin partition, and will also be exposed to the heat radiated from the steamjacket E through the partition C, thus producing a very powerful action.

It will be observed that with this structure there are no separate coils to install, the iirebox is entirely unobstructed, so that a iire may be maintained to the full capacity of the heater, the partitions which are exposed to the direct action of the iire are always adequately water-jacketed, so that there will be no danger of burning out the partition, and the cost ot' replacing the same would be comparatively small. A large radiating-surface is provided both as between the tire-box D and the water-jacket F and as between the steamjacket E and the water-jacket F, so that a quick, rapid, and powerful heating of the circulating water is obtained.

Vhile I have explained the relation and operation of the tire-box with the partitions A, B, and C and with the steam-jacket and water-jacket E and F, it will be understood that the partitions A', B', and C and the jackets E and F/ are duplicates thereof and are provid ed in turn with water inlet and outlet pipes Gr and H and with steam inlet and outlet pipes I' and J'. It will be further noted that in order to provide for the unequal expansion of the dierent partitions no one of the feedpipes or discharge-pipes passes through any two partitions. Although such construction is not absolutely necessary for the successful operation of my device, I consider it the preferred construction.

Obviously many variations in details may be made without departing from the spirit of my `invention.

I claim- 1. A heater comprising a casing surrounding the lire-box, said casing being formed of three walls, the space between the inner wall and the middle wall constituting a water-cham ber and the space between the middle wall and the outer wall constituting a steam-chamber, the projecting edges of said wall being secured together, the two inner walls being corrugated transversely of their length.

2. A heater comprising three partitions secured together at their projecting edges, and forming a compound wall for a combustionchamber, the two inner walls being corrugated transversely of their length, water-pipes connecting directly with the chamber formed by the space between the two inner walls, said pipes not passing through the outer wall, a steam-pipe leading to the space between the outer wall and a discharge-pipe leading from said last-named space.

3. A heater comprising two sections secured to each other to form the compound walls ol a combustion-chamber, cach section comprising three partitions, having their vertical projecting iianges welded together, and having their horizontal edges suitably secured together so as to form two disconnected chambers, one between the outer and middle walls and the second between the middle and inner walls, water supply and discharge pipes com municating directly with the space between the inner and middle walls without passing through the outer partition, and the two inner walls being corrugated transversely of their length.

4. A car-heater comprising a stove provided with compound walls, said walls consisting of two sections secured to each other to iorm the outer casing of said stove, sections comprising three partitions secured together at their vertical projecting edges, the space between the outer and middle partitions comprising a steam-chamber and the space between the middle and inner partitions comprising a waterchamber, the middle and inner chambers being corrugated transversely of their length, said corrugated partitions extending beyond the outer wall or partition, water-pipes enter ing said water-chamber through the extended portion of the middle partition, a steam-pipe entering each of the steam-chambers, and a discharge-pipe communicating with each of the steam-chambers, the two water-chambers heing disconnected from each other.

5. In a car-heating system, the combination with two independent systems of circulatingpipes for heating the car, of a heater in operative contact with said systems, said heater comprising a stove, the walls of which are formed of two sections, each section comprising three approximately parallel partitions,

IOC

tem comprising two independent sets of circulating-pipes, of a stove, the walls of which comprise two independent water-chambers in operative Contact with the combustion-chamber of said stove, means for provid ing a steamjacket in operative Contact with said independent water-jackets, and means for providinga How of water through said water-jackets.

WILLIAM H. JONES. Witnesses:

O. R. BARNETT, M. E. SHIELDS. 

